Toronto police are investigating the circumstances that led to a man seeking medical attention at Humber River Hospital on Wednesday, suffering from multiple gunshot wounds to his head and back.

The man showed up at the Finch Avenue site just before noon.

It was not immediately clear if he made his way to the hospital by himself, or was dropped off there.

Police are now reviewing surveillance video to see if there is any indication that someone brought him there.

The wounded man was subsequently transferred to the trauma centre at Sunnybrook Health Science Centre.